wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31-05-2024 10:19

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General

Target

Installer.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Drops startup file 2 IoCs

Processes:

Installer.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7D6D.tmp	Installer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD7D57.tmp	Installer.exe

Executes dropped EXE 4 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid process

396 !WannaDecryptor!.exe
3308 !WannaDecryptor!.exe
4256 !WannaDecryptor!.exe
3224 !WannaDecryptor!.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Installer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Installer.exe\" /r"	Installer.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

!WannaDecryptor!.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp"	!WannaDecryptor!.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Kills process with taskkill 4 IoCs
evasion

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

pid process

4712 taskkill.exe
4004 taskkill.exe
3576 taskkill.exe
4980 taskkill.exe

pid	process
4712	taskkill.exe
4004	taskkill.exe
3576	taskkill.exe
4980	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	4980	taskkill.exe
Token: SeDebugPrivilege	4712	taskkill.exe
Token: SeDebugPrivilege	4004	taskkill.exe
Token: SeDebugPrivilege	3576	taskkill.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid	process
396	!WannaDecryptor!.exe
396	!WannaDecryptor!.exe
3308	!WannaDecryptor!.exe
3308	!WannaDecryptor!.exe
4256	!WannaDecryptor!.exe
4256	!WannaDecryptor!.exe
3224	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

Installer.execmd.execmd.exe

description	pid	process	target process
PID 2564 wrote to memory of 4768	2564	Installer.exe	cmd.exe
PID 2564 wrote to memory of 4768	2564	Installer.exe	cmd.exe
PID 2564 wrote to memory of 4768	2564	Installer.exe	cmd.exe
PID 4768 wrote to memory of 3720	4768	cmd.exe	cscript.exe
PID 4768 wrote to memory of 3720	4768	cmd.exe	cscript.exe
PID 4768 wrote to memory of 3720	4768	cmd.exe	cscript.exe
PID 2564 wrote to memory of 396	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 396	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 396	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 3576	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 3576	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 3576	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4004	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4004	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4004	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4712	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4712	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4712	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4980	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4980	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 4980	2564	Installer.exe	taskkill.exe
PID 2564 wrote to memory of 3308	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 3308	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 3308	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 3600	2564	Installer.exe	cmd.exe
PID 2564 wrote to memory of 3600	2564	Installer.exe	cmd.exe
PID 2564 wrote to memory of 3600	2564	Installer.exe	cmd.exe
PID 2564 wrote to memory of 4256	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 4256	2564	Installer.exe	!WannaDecryptor!.exe
PID 2564 wrote to memory of 4256	2564	Installer.exe	!WannaDecryptor!.exe
PID 3600 wrote to memory of 3224	3600	cmd.exe	!WannaDecryptor!.exe
PID 3600 wrote to memory of 3224	3600	cmd.exe	!WannaDecryptor!.exe
PID 3600 wrote to memory of 3224	3600	cmd.exe	!WannaDecryptor!.exe

C:\Users\Admin\AppData\Local\Temp\Installer.exe
"C:\Users\Admin\AppData\Local\Temp\Installer.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2564

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 181651717150786.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:3720

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:396

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3576

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4004

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4712

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4980

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3308

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:3600

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3224

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk
Filesize
1KB

MD5
875173f67599c2c38554b122bfde69a6

SHA1
ba56aaeaf5fcb78d36ab48210d05208d1c880adc

SHA256
8bf52435f4a605594c10918f494009b5fa95d7c27d5c264908a8ba6a6fcbee88

SHA512
6114af14a5002dd273a9e08dfcf7a52327b3378bf078db68361c32484c4d33b6a33bd8258eed8bb61a68b24b1e9eb2321244b57dbd67d35faa558c54a6b13c22

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
3fae7d424bf516375f2824f7e83f11c9

SHA1
106864040a1d5cf02d590fb3cbe6fa34710af3b3

SHA256
e036e3ac69e3af002dac88523bd14abfb4914d18306a4d8b3f84d3fe76c273b0

SHA512
aaa576617655792123e96dc06122b7b14f16e70dc7231174c3aeef0e172be9c5c315d2e6f34c61d30025376de459fd3b0f6d7995d3c86dac31c32313c399b96a

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
96f49edc553759cf256fb1901e6a25cd

SHA1
ca2b5fcbdb0c8b3e7ccc2ab76251839702588c5f

SHA256
fc436422b8f73cdf452d129894d11245d142e04657309e6b62352c4bcfb43bd4

SHA512
d5e08edd369ca4495dbe0ce43509fe16421e4084c683edb8058dba1d7bde379d44fa304d9421e127a6508b59d4ea9f87ac5fa8ea10b70d98bc36ee8ea6452b0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
3fda4a95ad0784372dd20b8612b3d7e0

SHA1
be31ce875c87042db5e4600587635f301eeee469

SHA256
ed00ade9bc4627a3c5638f713488258b80000904247c315efb168a28778a0e4f

SHA512
c0fd2d7515f14867bb66e54473d777903b4f64d6eef7fc54875877ee268dcb01b567a6df4b12b1d8d5e42a8db62ffb2f450091aed98aa533ea14d9217ef9b3f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\181651717150786.bat
Filesize
336B

MD5
3540e056349c6972905dc9706cd49418

SHA1
492c20442d34d45a6d6790c720349b11ec591cde

SHA256
73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

SHA512
c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.vbs
Filesize
219B

MD5
5f6d40ca3c34b470113ed04d06a88ff4

SHA1
50629e7211ae43e32060686d6be17ebd492fd7aa

SHA256
0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

SHA512
4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry
Filesize
628B

MD5
50bacc89bb36f244acb2af0a62d7115d

SHA1
e89d641b21452100b1c8118765c0635b97734d9c

SHA256
b3e5f536ad4eb1dd05ddcd3dbb1c6ada141c01e37ea11a8e0aeee261329308c8

SHA512
bf2b7b52094e4bafce7e4a9b0093b41813fd511359ef28b0055213b5e4d3780e9709002afb3d7c2c32d1c58de47d2dc6b49a95395eed33b36129a57a4cf1732f

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry
Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry
Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/2564-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download